HarmonyOS 如何遍历包含emoji的字符串

@Entry 
@Component 
struct EmojiTest { 
  aboutToAppear(): void { 
    let string = 'Hello, World! \ud83c\udf0d'; 
    // 使用 'Array.from()' 
    for (let char of Array.from(string)) { 
      console.log('emoji string: ' + char); 
    } 
  } 
 
  build() { 
    Column() { 
      Text("Hello World") 
        .fontSize(50) 
        .fontWeight(FontWeight.Bold) 
    } 
    .width('100%') 
  } 
}